hutceins



(No Model.) 2 sheets sheet .G. F. H-UTGHINS. PATTERN MEUHANISM FOR LOOMS.

No. 506,818. Patented'Oot. 17, 1893.

wanna Q avwewc oz W V WM 1 I q I (No Model.): 2 sneets-sheet'z.

G. F. HUTOHINS.

PATTERN MEGHANISMPQR ILOOMS- No. 506,818. Patented-Oct. 17, 1893.

FIE- E- 7- avwentoi UNITED STATES PATENT OFFICE.

GEORGE F. HUTOHINS, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO THE KNOWLES LOOM WORKS, OF SAME PLACE.

PATTERN MECHANISM FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 506,818, dated October 17, 1893.

Application filed May 11, 1393. Serial No. 473,786. (No model.)

To all whom it may concern.-

l3e it known that I, GEORGE F. HUToHINs, a c1t1z enof theUnitedStates, residingatWorcester,1n the county of l/Vorcester and State of Massachusetts, have invented certain new and useful Improvements in Pattern Mechanism for Looms; and I do hereby declare that the following is a full, clear, and exact description thereof, which, in connection with the drawings making a part of this specificatlon, will enable others skilled in the art to which my invention belongs to make and use the same.

My invention relates to looms, and more particularly to the harness and drop box mechanism of the well known Knowles loom, shown and described in the United States Reissue Letters Patent No. 7,784, of July 3, 1877.

I amfaniiliar with the pattern mechanism shown and described in the United States Letters Patent No. 495,453, of April 11, 1893, and the object of my present invention is to improve upon the construction of the pattern mechanism shown and described in said patent, and more particularly to simplify the construction and combination of gears, intermediate the upper or lower cylinder gear and the pattern cylinder gear, for communicating a continuous fast and slow motion to the pattern cylinder, for the same purposes as fully set forth in said patent.

My invention consists in certain novel features of construction and combination of parts of the pattern mechanism for looms, of the class referred to, as will be hereinafter fully described, and the nature thereof indicated by the claims.

I have shown in the drawings a detached portion of, the head of the Knowles loom, above referred to, sufficient to illustrate the nature of my improvements applied thereto.

Referring to the drawingsz Figure 1 is a front elevation of a portion of the head of said Knowles loom, with my improvements applied thereto, looking in the direction of arrow a, Fig. 2. Fig. 2 is, on an enlarged scale, a partial vertical section through the system of gears, intermediate the lower cylinder gear and the pattern cylinder gear, taken on line 2, 2, Fig. 1, looking in the di rection of arrow b, same figure. Some of the parts shown in Fig. 1 are left off in this figure.

In the accompanying drawings 1 is the upper cylinder gear, the shaft 1' of which is journaled in the upper portion of the head frame 2.

3 is the lower cylinder gear, the shaft 4 of which is jou rnaled in the lower portion of the head frame 2.

5 is the pattern cylinder driving gear, fast on the pattern cylinder shaft 6, journaled in the frame 2, all in the usual way. Intermediate the pattern cylinder driving gear 5, and the upper or lower cylinder gear, in this instance the lower cylinder gear 3, is arranged a system of gears for communicating a continuous fast and slow motion to the driving gear 5 on the pattern cylinder shaft 6, and to the pattern cylinder, not shown, both inaforward and in a backward direction. 7c

The system of gears, intermediate the lower cylinder gear andthe pattern cylinder gear, for communicating a continuous fast and slow motion, either in aforward orin a backward direction to the pattern cylinder shaft, consists of a pair of elliptical gears 7 and 8, I in mesh with each other, a pair of circular gears 9 and 10 in mesh with each other, and a second pair of circular gears 11 and 12 in mesh with the pattern cylinder gear 5. The lower elliptical gear 7 is splined on the projecting end of the lower cylinder gear shaft 4, and meshes with and drives the elliptical gear 8, mounted on the longitudinally movableshaft l3, and preferably connected with said shaft by a fin or projection 13 thereon. extending into a slot 8' in the hub of said "ear 8.

a The shaft 13 is supported at its inner end in the lower end 14 of an arm 14, and at its outer end in thehub llof the gear 11, which gear is loosely mounted on said shaft, and the hub 11 of said gear is supported and adapted to revolve in the lower end 15 of the bracket or arm 15, secured to the loom frame 2, in this instance by bolts 16. See Fig. 1.

Also mounted loosely on the shaft 13 is acircular gear 9; said gear 9 and the gear 11 are provided with slots 9 and 11" in their hubs, to receive the fin or projection 13" on the [O0 shaft 13, to couplethe gear 9, or the gear 11 to said shaft, and cause the same to revolve with the elliptical gear 8. 11 are also provided with a circular groove 17, within the hubs of said gear at their adjoining ends, as shown in Fig. 2, into which the fin or projection 13" on the shaft 13 will extend, by moving the shaft 13 longitudinally, when it is desired to uncouple said gears from said shaft and from the elliptical gear 8; both of said gears are then free to turn on the shaft 13, independently of said shaft and the elliptical gear 8, and the pattern cylinder gear 5 may be turned in either direction by hand.

The circular gear 10 is mounted loosely on the shaft 4, and the gear 12, is attached thereto, and preferably made integral therewith, as shown in Fig. 2, so that both gears revolve together on said shaft 4. The gears 10 and 12, and the elliptical gear are retained on the shaft 4, in this instance by a collar 23, and pin 24. As before stated, both of the gears 11 and 12 mesh with the driving gear 5 on the pattern cylinder shaft (3, as shown in Fig. 1.

Thelongitudinally movable shaft 13, which acts as a sliding key to coupleone of the circular gears" 9, or 11, to said shaft, and to the elliptical gear 8, or to uncouple said gears therefrom, is provided with circumferential grooves 18 therein, at its inner end, into which a pin 19, on the end of a spring arm 20, and

extending through a hole 21 in the end 14' of the arm 14, is adapted to extend, to hold the shaft 13 in its adjusted position. The upper end of the spring arm 20 is in this instance secured by a screw 22 to the bracket 15. The

outer end of the shaft 13 is provided with a 2 head 23, by means of which said shaft may be moved longitudinally.

with the drawings, the operation of the system of gears, for communicating a continuous fast and slow motion to the gear 5 on the pattern cylinder shaft 6, either in a forward or in a backward direction, will be readily understood by those skilled in the art.

When it is'desired to drive the pattern shaft 6 in a forward direction, as indicated by the arrow in Fig. 1, the shaft 13 is in the position shown in Fig. 2, having the fin or projection 13" thereon, engaging the slot 9 in the circular gear 9, to couple said gear to said shaft, and to the elliptical gear 8 fast thereon. The revolution of the lower cylinder gear shaft 4, which acts as the driver, communicates motion to the elliptical gear 7, fast thereon, and through said gear 7 to the gear 8 coupled to the shaft 13, and through the circular gear 9, coupled to the shaft 13, to the circular gear 10 loose on the shaft 4, and the gear 12 fast to said gear 10, and through said gear 12, to the driving gear 5; the gear 11 meshing with the gear 5, runs loose on the shaft 13. When it is desired to drive the pattern cylinder shaft 6 in the reverse direction, the shaft 13 is drawn outwardly until the projection or fin 13" thereon, engages with the slot 11" in the hub 11 of the gear 11. The spring aetu The gears 9 and ated pin 19, will then engage the last circu mferential groove 18 in the end of the shaft 13. The gear ll will now be coupled to the shaft 13 and to the elliptical gear 8, and will drive the cylinder gear 5 in the opposite direction, the circular gears 9, l0, and 12 running loose. When it is desired to turn the pattern cylinder gear 5 freely in either direction, independently of the gears 11 and 12, the shaft 13 is moved longitudinally, so that the projection or fin 13" thereon will extend in the circular groove 17 in the gears 9 and 11; the spring actuated pin 19 will now extend into the middle circumferential groove 18 in the shaft 13, and the gears 9 and 11 will both be loose on the shaft 13, as also the gears-10 and 12 on the shaft 4,-and free to turn in either direction independently of the elliptical gears 7 and 8, and the shaft 13.

The advantages of my improvements, over the construction and combination of the gears shown in said Patent No. 495,453, above referred to, will be readily appreciated by those skilled in the art.

I do away with one pair of ellipticalgears, and arrange one set of gears on the shaft of the upper or lower cylinder gear, and the other 1 set of gears on a movable shaft, which shaft not only acts to support the gears, but also acts as akey to couple the circular gearsthereto, or to uncouple them therefrom.

By my improved construction I- obtain the.

' results sought for in said Patent No. 495,453,

and by a much simpler and less expensive combination of gears. I Having thus described my invention,what.I

, claim as new, and desire to secure by Letters 1 Patent, is From the above description, in connection 1. In a loom, the combination with the head motion cylinder gear, and the pattern cylin der gear, of gearingintermediate said gears, .for communicating a continuous fast and slow motion to the pattern cylinder gear,such gearing consisting of a pair of elliptical gears meshing with each other, one of said elliptical gears being fasten the shaft of the said head mot-ion cylinder gear, and the other being fast on a longitudinally movable shaft, a pair of circular gears meshing with eachother,

1 one of said circular gears being loose on the shaft of the said head motion cylinder gear, and the other being loose on said longitudinally movable shaft, and adapted to be coupled thereto, this latter gear having a circular recess in its hub, and a second pair of :circular gears, both of said circular gears meshing with the pattern cylinder gear, one

. of said gears being attached to the first mentioned circular gear, loose on the shaft of said head motion cylinder gear, and the other being loose on said longitudinally movable shaft, and adapted to be coupled thereto, this latter gear having a circular recess in its hub adjacent the recess in the hub of the other gear, and said longitudinally movable shaft, the same being provided with fins or projections thereon adapted to extend in slots in the hubs of the circular gears mounted thereon, to couple either one of said gears thereto, and also to extend in the circular recesses in the hubs of saidgears, to allow the circular gears to turn loosely thereon, for the purpose stated, substantially as set forth.

2. In a loom, the combination with the head motion cylinder gear, and the pattern cylinder gear, of gearing intermediate said gears, for communicating a continuous fast and s1ow mot1on to the pattern cylinder gear, such gearing consisting of a pair of elliptical gears meshing with each other, one of said elliptical gears being fast on the shaft ofsaid head motion cyllnder gear, and the other being fast on a longitudinally movable shaft, a pair of circular gears meshing with each other, one of sald circular gears being loose on the shaft of the said head motion cylinder gear, and the other being loose on said longitudinally movable shaft, and adapted to be coupled thereto, this latter gear having a circular recess in its hub, and a second pair of circular gears, both of said circular gears meshing wlth the pattern cylinder gear, one of said gears being attached to the first mentioned circular gear, loose on the shaft of the said head motion cylinder gear, and the other being loose on said longitudinally movable shaft, and adapted to be coupled thereto, this 0 latter gear having a circular recess in its hub, adjacent the recess in the hub of the other gear, and said longitudinally movable shaft supported. at' itsinner end in an arm attached to the loom frame, and provided with circum- 35 ferential grooves therein, into which a pin on a spring arm extends, to hold said shaft in its adjusted position, and said spring arm and pin, and said longitudinally movable shaft supported at its outer end in the hub of the 0 circular gear meshing with the pattern c'ylinder gear, said hub supported in the end of an arm or bracket secured to the loom frame, and said arm or bracket, and said longitudinally movable shaft provided with' fins or projec- 45 tions thereon adapted to extend in slots in the hubs of the circular gears mounted thereon, to couple either one of said gears thereto, and also to extend in the circular recesses in the hubs of said gears to allow the circular 50 I gears to turn loosely thereon, for the purpose stated, substantially as set forth.

GEORGE F.'HUTOHINS.

Witnesses:

JOHN C. DEWEY, KATIE FARRELL. 

